3121343375 has 16 divisors (see below), whose sum is σ = 3961470240. Its totient is φ = 2454745600.

The previous prime is 3121343369. The next prime is 3121343387. The reversal of 3121343375 is 5733431213.

It is not a de Polignac number, because 3121343375 - 2¹² = 3121339279 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204242 + ... + 218991.

It is an arithmetic number, because the mean of its divisors is an integer number (247591890).

Almost surely, 2^3121343375 is an apocalyptic number.

3121343375 is a deficient number, since it is larger than the sum of its proper divisors (840126865).

3121343375 is an equidigital number, since it uses as much as digits as its factorization.

3121343375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423307 (or 423297 counting only the distinct ones).

The product of its digits is 22680, while the sum is 32.

The square root of 3121343375 is about 55868.9840161784. The cubic root of 3121343375 is about 1461.4384046053.

Adding to 3121343375 its reverse (5733431213), we get a palindrome (8854774588).

The spelling of 3121343375 in words is "three billion, one hundred twenty-one million, three hundred forty-three thousand, three hundred seventy-five".